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Rotula Lour.

Genus

Angiosperms > Boraginales > Boraginaceae

Characteristics

Shrubs. Stems numerous, prostrate or wandlike, glabrous or sericeous; branches thin, straight. Leaves alternate, fascicled at nodes, short petiolate or sessile, entire or inconspicuously dentate. Cymes terminal, sparse, small. Calyx 5-lobed; lobes overlapping in bud, lanceolate. Corolla purple-red or pink, subcampanulate, 5-lobed; tube short; lobes spreading, overlapping in bud, oblong to orbicular. Stamens included or exserted; filaments glabrous; anthers oblong. Ovary ovoid or oblong, 4-loculed; ovules 1 per locule. Style terminal, undivided; stigma enlarged, somewhat 2-cleft, subpeltate. Drupes red, endocarp well developed, dividing into 4 1-seeded pyrenes. Seeds oblong, without endosperm.
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Shrub with several slender, ascending to prostrate, virgate stems. Leaves small, sub-coriaceous, sessile or subsessile, on short lateral branchlets. Inflorescences a small cyme terminating the branchlets and main branches. Corolla with a short tube included in the 5-lobed calyx, with 5 spreading, rounded lobes. Stamens exserted with filiform, elongate, glabrous filaments. Pistil: style apical, slender, undivided, with an indistinctly bi-lobed stigma. Fruit drupaceous, red, with a strongly 4-lobed endocarp breaking up into 4 single-seeded pyrenes at an early stage. Fig. 11.
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Growth form shrub
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Sexuality hermaphrodite
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Hardiness (USDA) 8-12

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Images

Rotula unspecified picture

Distribution

Rotula world distribution map, present in Brazil, China, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:4783-1
WFO ID wfo-4000033533
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Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rhabdia Rotula

Lower taxons

Rotula aquatica Rotula pohlii
WorldFloraDB 2024